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Vaselesa [24]
2 years ago
5

Which of the following shows the valency of 1?

Chemistry
2 answers:
Oliga [24]2 years ago
6 0

\huge \bf༆ Answer ༄

The element having valency of 1 is ~

  • Sodium (Na)
Alla [95]2 years ago
6 0

Answer: Pretty sure this is d.) sodium

Explanation:

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Alina [70]
C is the correct answer
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In a redox reaction, reduction is defined by the:
jonny [76]

Answer:

C. Gain in electron(s) resulting in a decrease of oxidation number.

Explanation:

Redox reactions are reactions involving transfer of of electron between two species (reduction specie) and (oxidation species) and change resulting in change in oxidation number.

Reduction in terms of redox reaction is the specie that accepts electron(s) and gets "reduced" since its oxidation state has been reduced.

For example

Cl + e- → Cl⁻

The above reaction is an example of reduction reaction taking place in a redox reaction. We can see that Chlorine oxidation state was changed from (0) to (-1) state.

5 0
3 years ago
Which of these statements best explains why chemistry is reliable?
Dominik [7]

Answer:

It gives the same result when an experiment is repeated.

Explanation:

Below are the possible answers to the question:

<em>It is biased. </em>

<em>It cannot be verified. </em>

<em>It cannot add new evidence to existing evidence. </em>

<em>It gives the same result when an experiment is repeated.</em>

<em />

<em>The correct answer would be that </em><em>it gives the same result when an experiment is repeated.</em>

If a reaction is conducted in chemistry and certain results are obtained, once a detailed procedure of the experiment is known along with all the chemicals involved, such reaction/experiment can be repeated anywhere in the world and the same result would be obtained.

<u>The repeatability of experiments always makes the experiments to be reliable.</u> Hence, chemistry is reliable because it gives the same result without any variation when experiments are repeated under similar conditions.

7 0
3 years ago
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worty [1.4K]

Answer:

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Explanation:

answering questions yuh

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